define(function(require){
	var $=require("jq");
	function AdHover(obj){
		//保存li
		this.adItems=$("li",obj);
		this.adItems.hover(function(){
			$("span",this).stop().slideDown("fast");
		},function(){
			$("span",this).stop().slideUp("fast");
		});
	};
	var adHover=new AdHover($("#J_AdHover"));
});